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5+3.7x=4.2+4.2x
We move all terms to the left:
5+3.7x-(4.2+4.2x)=0
We add all the numbers together, and all the variables
3.7x-(4.2x+4.2)+5=0
We get rid of parentheses
3.7x-4.2x-4.2+5=0
We add all the numbers together, and all the variables
-0.5x+0.8=0
We move all terms containing x to the left, all other terms to the right
-0.5x=-0.8
x=-0.8/-0.5
x=1+0.3/0.5
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